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Old 01-20-2018, 11:08 AM   #41
makinen
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Quote:
Originally Posted by gtengr View Post
I agree, but my aim wasn't to investigate this as the best option. I was looking at is as a possible way to get "some" venting without cutting the stock hood or dealing with aftermarket hoods. Also, the theoretical vent location is not on the surface of the hood, it would be on flat vertical face under the rear of the hood, and recessed about 4" toward the front of the car as measured from the vertical plane at the back edge of the hood.

I don't mind if I'm wrong. I just don't think pointing to the pressure distribution on the top surface of the hood tells the full story, or that the underhood pressure isn't a factor.
Under hood pressure should be counted for the venting. Pressure difference really makes air move.

I did an experiment for the vent at the cowl area on 2016. With the help of a Gurney flap, at least it blows out some air. I guess a blocking vertical barrier that divides low pressure zone and high pressure zone could help more.





I know it cannot blow out as much air that hood vent can. But could be better than nothing.
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